Home / 19,972.40-27,561.92-11,475.08

Finding the Fourth Proportional to 19,972.40, 27,561.92 and 11,475.08

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Solution

The fourth proportional to 19,972.40, 27,561.92 and 11,475.08 is: 15,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.40 : 27,561.92 = 11,475.08 : x
  2. Step 2: Convert to fraction form
    19,972.40/27,561.92 = 11,475.08/x
  3. Step 3: Cross multiply
    19,972.40x = 27,561.92 × 11,475.08
  4. Step 4: Simplify right side
    19,972.40x = 316,275,236.95
  5. Step 5: Solve for x
    x = 316,275,236.95/19,972.40
  6. Step 6: Final answer
    x = 15,835.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.